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发明名称
Anti-rotation coupling
摘要
A mechanical coupling is disclosed wherein similarly pitched and profiled but oppositely threaded threads are provided for two couplings incorporating an anti-rotation member such as a tongue-and-groove or a drill hole and dowel pin.
申请公布号
US4487433(A)
申请公布日期
1984.12.11
申请号
US19820369328
申请日期
1982.04.16
申请人
MOBIL OIL CORPORATION
发明人
MILLER, HENRY W.
分类号
E21B17/043;E21B17/08;F16L15/08;(IPC1-7):F16L15/00
主分类号
E21B17/043
代理机构
代理人
主权项
地址
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